Chamberlain 84LM Leaflet

To prevent possible SERIOUS INJURY or DEATH from a moving gate or
garage door:
• ALWAYS keep remote controls out of reach of children. NEVER permit

children to operate, or play with remote control transmitters.

• Activate gate or door ONLY when it can be seen clearly, is properly

adjusted, and there are no obstructions to door travel.

• ALWAYS keep gate or garage door in sight until completely closed. NEVER

permit anyone to cross path of moving gate or door.

The push buttons on the 4-Button remote controls can activate garage
door openers, entry ways and/or light controls. (Instructions for
programming light products are included with those accessories.)

Code switch remote controls are used when several persons are
operating the same device. Code switches must be set to
matching positions in all remote controls used to operate the
same receiver. Follow the instructions for Figures 1 and 2. Use the
“ribbed” push button exclusively for code switch application.

For use with
green “learn”
button ONLY

Connector

Battery

Battery
Compartment
Cover

Ribbed Push Button
(Recommended for code
switch application)

Green
Test Light

1. Remove the battery compartment cover as shown in Figure 1.

2. Remove the case screw on the housing bottom.

3. Hold the remote control as indicated and pull to separate the

housing. Set aside the case top (with push buttons).

4. Place remote circuit boards side by side. Make sure you set code

switches 1 through 9 in all remotes to matching positions (Figure 2).
Use a pen or a screwdriver to move the switches to (+), (-) or (0).

5. Reassemble case top and bottom by snapping them together.

6. Replace the case screw and battery compartment cover.

Match Code Switches (1-9)

1 2 3 4 5 6 7 8

0

9

1 2 3 4 5 6 7 8

0

9

1. Press and release the “learn” button on the

motor unit. The learn indicator light will glow
steadily for 30 seconds.

2. Within 30 seconds, press and hold the button

on the hand-held remote.

3. Release the button when the motor unit light

blinks. It has learned the code. If light bulbs
are not installed, two clicks will be heard.

2

3

1

KG

KG

To deactivate any unwanted remote, first erase all codes:

Press and hold the “learn” button on motor unit until the
learn indicator light goes out (approximately 6 seconds).
All previous codes are now erased. Reprogram each
remote or keyless entry you wish to use.

1.  Remove the visor clip from the clip holder.

2.  Remove the case screw. Insert tab on clip holder through circular

label and into case, Figure 3. Slide clip holder forward.

3.  Replace the case screw (do not overtighten). Slide visor clip onto

clip holder.

2

3

1

KG

KG

Clip Holder

Tab

Case
Screw

Case
Screw

Slide
Clip Holder

Visor Clip

Bottom of
Remote
Case

The 9V battery should produce power for at least one year.
If the green test light is dim or does not come on, replace 
the battery.

To change the battery, remove the battery compartment
cover, unsnap the connector and remove the old 
battery.  Insert a replacement battery. Snap the 
connector onto the new battery and replace 
compartment cover.

Visor Clip  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29C128
Visor Clip Holder  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31C412-1
9V Battery  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10A16

©2006, The Chamberlain Group, Inc.

114A1887D

All Rights Reserved

To prevent possible SERIOUS INJURY or DEATH:
• NEVER allow small children near batteries.
• If battery is swallowed, immediately notify doctor.

NOTICE: To comply with FCC and or Industry Canada rules (IC), adjustment or modifications of
this receiver and/or transmitter are prohibited, except for changing the code setting or replacing
the battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.
Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired operation.